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| author | Philipp A | 2019-12-26 23:01:00 +0100 |
|---|---|---|
| committer | Philipp A | 2019-12-26 23:36:48 +0100 |
| commit | a0e3c53758d526bb418c068bce1c99fa5a597ed3 (patch) | |
| tree | e640238b011a9ea7806ccccaf1a435e4b371a376 /src/renderer/html.rs | |
| parent | 7018f5d3c42f18b6c83f398db9f1915361a7c679 (diff) | |
| download | rust-rst-a0e3c53758d526bb418c068bce1c99fa5a597ed3.tar.bz2 | |
Split into smaller crates
Diffstat (limited to 'src/renderer/html.rs')
| -rw-r--r-- | src/renderer/html.rs | 388 |
1 files changed, 0 insertions, 388 deletions
diff --git a/src/renderer/html.rs b/src/renderer/html.rs deleted file mode 100644 index 6041ec0..0000000 --- a/src/renderer/html.rs +++ /dev/null @@ -1,388 +0,0 @@ -use std::io::Write; - -use failure::Error; - -// use crate::url::Url; -use crate::document_tree::{ - Document,Element,HasChildren,ExtraAttributes, - elements as e, - element_categories as c, - extra_attributes as a, -}; - - -// static FOOTNOTE_SYMBOLS: [char; 10] = ['*', '†', '‡', '§', '¶', '#', '♠', '♥', '♦', '♣']; - -pub fn render_html<W>(document: &Document, stream: W, standalone: bool) -> Result<(), Error> where W: Write { - let mut renderer = HTMLRenderer { stream, level: 0 }; - if standalone { - document.render_html(&mut renderer) - } else { - for c in document.children() { - (*c).render_html(&mut renderer)?; - writeln!(renderer.stream)?; - } - Ok(()) - } -} - -fn escape_html(text: &str) -> String { - text.replace('&', "&") - .replace('<', "<") - .replace('>', ">") - .replace('"', """) -} - -struct HTMLRenderer<W> where W: Write { - stream: W, - level: u8, -} - -trait HTMLRender { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write; -} - -macro_rules! impl_html_render_cat {($cat:ident { $($member:ident),+ }) => { - impl HTMLRender for c::$cat { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - match self {$( - c::$cat::$member(elem) => (**elem).render_html(renderer), - )+} - } - } -}} - -macro_rules! impl_html_render_simple { - ( - $type1:ident => $tag1:ident $( [$($post1:tt)+] )?, - $( $type:ident => $tag:ident $( [$($post:tt)+] )? ),+ - ) => { - impl_html_render_simple!($type1 => $tag1 $([$($post1)+])?); - $( impl_html_render_simple!($type => $tag $([$($post)+])?); )+ - }; - ( $type:ident => $tag:ident ) => { - impl_html_render_simple!($type => $tag[""]); - }; - ( $type:ident => $tag:ident [ $post:expr ] ) => { - impl HTMLRender for e::$type { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - let multiple_children = self.children().len() > 1; - write!(renderer.stream, "<{}>", stringify!($tag))?; - if multiple_children { write!(renderer.stream, $post)?; } - for c in self.children() { - (*c).render_html(renderer)?; - if multiple_children { write!(renderer.stream, $post)?; } - } - write!(renderer.stream, "</{}>", stringify!($tag))?; - Ok(()) - } - } - }; -} - -macro_rules! impl_html_render_simple_nochildren {( $($type:ident => $tag:ident),+ ) => { $( - impl HTMLRender for e::$type { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - write!(renderer.stream, "<{0}></{0}>", stringify!($tag))?; - Ok(()) - } - } -)+ }} - -// Impl - -impl HTMLRender for Document { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - writeln!(renderer.stream, "<!doctype html><html>")?; - for c in self.children() { - (*c).render_html(renderer)?; - writeln!(renderer.stream)?; - } - writeln!(renderer.stream, "</html>")?; - Ok(()) - } -} - -impl_html_render_cat!(StructuralSubElement { Title, Subtitle, Decoration, Docinfo, SubStructure }); -impl_html_render_simple!(Subtitle => h2); - -impl HTMLRender for e::Title { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - let level = if renderer.level > 6 { 6 } else { renderer.level }; - write!(renderer.stream, "<h{0}>", level)?; - for c in self.children() { - (*c).render_html(renderer)?; - } - write!(renderer.stream, "</h{0}>", level)?; - Ok(()) - } -} - -impl HTMLRender for e::Docinfo { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - // Like “YAML frontmatter” in Markdown - unimplemented!(); - } -} - -impl HTMLRender for e::Decoration { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - // Header or footer - unimplemented!(); - } -} - -impl_html_render_cat!(SubStructure { Topic, Sidebar, Transition, Section, BodyElement }); -impl_html_render_simple!(Sidebar => aside); - -impl HTMLRender for e::Section { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - renderer.level += 1; - writeln!(renderer.stream, "<section id=\"{0}\">", self.ids()[0].0)?; - for c in self.children() { - (*c).render_html(renderer)?; - writeln!(renderer.stream)?; - } - write!(renderer.stream, "</section>")?; - Ok(()) - } -} - -impl HTMLRender for e::Transition { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - write!(renderer.stream, "<hr/>")?; - Ok(()) - } -} - -impl HTMLRender for e::Topic { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - // A mini section with title - unimplemented!(); - } -} - -impl_html_render_cat!(BodyElement { Paragraph, LiteralBlock, DoctestBlock, MathBlock, Rubric, SubstitutionDefinition, Comment, Pending, Target, Raw, Image, Compound, Container, BulletList, EnumeratedList, DefinitionList, FieldList, OptionList, LineBlock, BlockQuote, Admonition, Attention, Hint, Note, Caution, Danger, Error, Important, Tip, Warning, Footnote, Citation, SystemMessage, Figure, Table }); -impl_html_render_simple!(Paragraph => p, LiteralBlock => pre, MathBlock => math, Rubric => a, Compound => p, Container => div, BulletList => ul["\n"], EnumeratedList => ol["\n"], DefinitionList => dl["\n"], FieldList => dl["\n"], OptionList => pre, LineBlock => div["\n"], BlockQuote => blockquote, Admonition => aside, Attention => aside, Hint => aside, Note => aside, Caution => aside, Danger => aside, Error => aside, Important => aside, Tip => aside, Warning => aside, Figure => figure); -impl_html_render_simple_nochildren!(Table => table); //TODO: after implementing the table, move it to elems with children - -impl<I> HTMLRender for I where I: e::Element + a::ExtraAttributes<a::Image> { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - let extra = self.extra(); - if let Some(ref target) = extra.target { - write!(renderer.stream, "<a href=\"{}\">", escape_html(target.as_str()))?; - } - write!(renderer.stream, "<img")?; - if let Some(ref alt) = extra.alt { - write!(renderer.stream, " alt=\"{}\"", escape_html(alt))?; - } - // TODO: align: Option<AlignHV> - // TODO: height: Option<Measure> - // TODO: width: Option<Measure> - // TODO: scale: Option<u8> - write!(renderer.stream, " src=\"{}\" />", escape_html(extra.uri.as_str()))?; - if extra.target.is_some() { - write!(renderer.stream, "</a>")?; - } - Ok(()) - } -} - -impl HTMLRender for e::DoctestBlock { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - // TODO - unimplemented!(); - } -} - -impl HTMLRender for e::SubstitutionDefinition { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - // TODO: Should those be removed after resolving them - Ok(()) - } -} - -impl HTMLRender for e::Comment { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - write!(renderer.stream, "<!--")?; - for c in self.children() { - (*c).render_html(renderer)?; - } - write!(renderer.stream, "-->")?; - Ok(()) - } -} - -impl HTMLRender for e::Pending { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - // Will those be resolved by the time we get here? - unimplemented!(); - } -} - -impl HTMLRender for e::Target { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - // Should be resolved by now - Ok(()) - } -} - -impl HTMLRender for e::Raw { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - for c in self.children() { - write!(renderer.stream, "{}", c)?; - } - Ok(()) - } -} - -impl HTMLRender for e::Footnote { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - unimplemented!(); - } -} - -impl HTMLRender for e::Citation { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - unimplemented!(); - } -} - -impl HTMLRender for e::SystemMessage { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - write!(renderer.stream, "<figure><caption>System Message</caption>")?; - for c in self.children() { - (*c).render_html(renderer)?; - } - write!(renderer.stream, "</figure>")?; - Ok(()) - } -} - -impl_html_render_cat!(TextOrInlineElement { String, Emphasis, Strong, Literal, Reference, FootnoteReference, CitationReference, SubstitutionReference, TitleReference, Abbreviation, Acronym, Superscript, Subscript, Inline, Problematic, Generated, Math, TargetInline, RawInline, ImageInline }); -impl_html_render_simple!(Emphasis => em, Strong => strong, Literal => code, FootnoteReference => a, CitationReference => a, TitleReference => a, Abbreviation => abbr, Acronym => acronym, Superscript => sup, Subscript => sub, Inline => span, Math => math, TargetInline => a); - -impl HTMLRender for String { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - write!(renderer.stream, "{}", escape_html(self))?; - Ok(()) - } -} - -impl HTMLRender for e::Reference { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - let extra = self.extra(); - write!(renderer.stream, "<a")?; - if let Some(ref target) = extra.refuri { - write!(renderer.stream, " href=\"{}\"", escape_html(target.as_str()))?; - } - /* - if let Some(ref name) = extra.name { - write!(renderer.stream, " title=\"{}\"", escape_html(&name.0))?; - } - */ - write!(renderer.stream, ">")?; - for c in self.children() { - (*c).render_html(renderer)?; - } - write!(renderer.stream, "</a>")?; - Ok(()) - } -} - -impl HTMLRender for e::SubstitutionReference { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - // Will those be resolved by the time we get here? - unimplemented!(); - } -} - -impl HTMLRender for e::Problematic { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - // Broken inline markup leads to insertion of this in docutils - unimplemented!(); - } -} - -impl HTMLRender for e::Generated { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - // Section numbers and so on - unimplemented!(); - } -} - -impl HTMLRender for e::RawInline { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - for c in self.children() { - write!(renderer.stream, "{}", c)?; - } - Ok(()) - } -} - - -//--------------\\ -//Content Models\\ -//--------------\\ - -impl_html_render_cat!(SubTopic { Title, BodyElement }); -impl_html_render_cat!(SubSidebar { Topic, Title, Subtitle, BodyElement }); -impl_html_render_simple!(ListItem => li); - -impl HTMLRender for e::DefinitionListItem { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - // Term→dt, Definition→dd, Classifier→??? - unimplemented!(); - } -} - -impl HTMLRender for e::Field { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - // FieldName→dt, FieldBody→dd - unimplemented!(); - } -} - -impl HTMLRender for e::OptionListItem { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - // OptionGroup→dt(s), Description→dd - unimplemented!(); - } -} - -impl_html_render_cat!(SubLineBlock { LineBlock, Line }); - -impl HTMLRender for e::Line { - fn render_html<W>(&self, renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - for c in self.children() { - (*c).render_html(renderer)?; - } - write!(renderer.stream, "<br>")?; - Ok(()) - } -} - -impl_html_render_cat!(SubBlockQuote { Attribution, BodyElement }); -impl_html_render_simple!(Attribution => cite); //TODO: correct? - -impl_html_render_cat!(SubFigure { Caption, Legend, BodyElement }); -impl_html_render_simple!(Caption => caption); - -impl HTMLRender for e::Legend { - fn render_html<W>(&self, _renderer: &mut HTMLRenderer<W>) -> Result<(), Error> where W: Write { - unimplemented!(); - } -} - -//------------\\ -//Things to do\\ -//------------\\ - -//TODO: prettyprint option list -//TODO: render admonitions: Admonition, Attention, Hint, Note, Caution, Danger, Error, Important, Tip, Warning -//TODO: properly render tables - -//TODO: add reference target: FootnoteReference, CitationReference, TitleReference -//TODO: add title: Abbr, Acronym -//TODO: convert math, set display attr -//TODO: add id: Rubric, Target, TargetInline |
